Henry neddermann



(No Model.)

H. NEDDERMANN.

PAINTERS SGAPFOLDING. No. 593,677. Patented Nov, 16,1897.

WITNESSES INVENTOR ATTO R NEYS .UNITED STATES PAT NT Urrrcn.

HENRY NEDDERMANN, OF NEW YORK, N. Y., ASSIGNORTO BERTHA NEDDERMANN, OFSAME PLACE.

PAINTERS SCAFFOLDING- SPECIFICATION forming part of Letters Patent No.593,677, dated November 16, 1897.

Application flled M91011 11, 1897. Serial No. 627,013. (No model.)

This invention relates to that class of painters scaffolding whichembodies a suspended ladder or platformadapted to be adjustedvertically.

The objectof my invention is to provide a simple and improvedscaffolding of this character which can be effectively and safely lockedin position at any desired point, whereby positive position and thesafety of the workingman is insured. 1

In the drawings,Figure 1 is an end elevation showing my improvedadjustable scaf-' foldin g apparatus in position upon abuilding.

Fig. 2 is acorresponding front elevation.

Referring to the drawings, A designates the ladder or platform, which issuspended upon ropes a and pulleys a, depending from top supportingbeams or brackets a The foregoing mechanism may be of any usual oradapted construction and mounted in any ordinary manner.

B designates guide-rods comprised in my invention, which are adapted tobe secured in vertical position with relation to the front or base ofthe building and are arranged in parallel position, as shown in Fig. 2,and mounted with respect to' the ends of the ladder or platform A. Thevertical guide-rods B are carried upon brackets 0, adapted to be securedin the window-openings of the building, preferably upon the base orsill. These brackets embody a right-angular main portion 0, the

' arms of which, a and 0 respectively bear upon the top or outer edge ofthe windowsill. The top arm 0 projects inwardly at the 1 window-opening,and upon its inner end is mounted a downwardlyextending arm 0 adapted tobear against the inner edge or face of the window-sill. The bracket. isthus securely mounted in position upon the Windowsill and embraces boththe outer and inner faces of the same, so that accidental displacementor movement in either direction is obviated; The inner retaining-arm cis adj ustably mounted upon the top arm 0 to adapt the device foreffective use in connection with the various sizes of sills,'thisadjustable connection being preferably formed by having the arm 0 insliding connection with the arm 0 and provided with a set-screw d, bywhich it may be secured in adjusted position. The vertical guide-rods Bare preferably cylindrical and pass through a corresponding opening inthe front arms 0 or front portion of the retaining-bracket O and arevertically adjustable therein by means of the set-screw d. The frontface of the outerarm c of the supporting-bracket is preferably providedwith a concaved channel 0 within which rests the vertical guide-rod B,by which construction a braced and more secure connection is formed.

In the operation of the apparatus the ladder or platform A may bevertically adjusted by means of the suspending-rope a, as desired, andwhen in the desired relative position it may be secured or fastened tothe guide-rods B by means of a rope or loop E at any point upon saidrods to safely and efiectively retain it in'its adjusted position.

Having thus described my invention, what I claim 'as new, and desire tosecure by Letters Patent, is

1. In a scaffolding of the class described, the combination, with theladder or platform suspended upon ropes, of the vertical guiderodsmounted with relation to the front of the building or other surface, thesupportingbrackets carrying said guide-rods and embodyingtheright-angular main, portion having the top arm anddownwardly-projectingouter arm and the downwardly-extending inner arm adjustably mounted uponthe top arm, and means for connecting the suspended ladder or platformwith the guide-rods, substantially as and for the purpose set forth.

2. An improved scaffolding of the class described, comprising thesupporting-brackets adapted to be secured upon the sills of theWindow-openings of a building and embodying a right-angular main portionhaving the inwardly-projecting top arm and the downwardly-extendingouter arm and the downwardly extending inner arm adjustably mounted uponsaid top arm, and vertical guide-rods mounted with relation to the frontof the building and adjustably connected With the outer portion of thesupportingbrackets, in combination with a suspended ladder or platformhaving a vertical adjustment with relation to said guide-rods, and meansfor connecting the platform and rods, substantially as and for thepurpose set forth.

3. An improved scaffolding of the class described, comprising thesupporting-brackets adapted to be secured to the sills of thewindow-openings of a building and embodying the right-angular mainportion having the inWardly-extendin g top arm and downwardlyprojectingouter arm and the downwardlyextending inner arm having a slidingconnection upon the top arm and provided with the adjusting set-screw,the outer portion of said HENRY NEDDERMANN.

Witnesses:

O. SEDGWICK, M. G. MAoLEAN.

